DB2 Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

DB2 Interview Questions

Questions Answers Views Company eMail

How we create a tables in db2,what is the process/syntax to create a table with example plz?

2 15206

4. A DB2 application is bound with uncommitted Read isolation level.It issues a request that retrieves 20 rows out of 200000 in the table. Which of the following descrbes the rows that are locked as a result of this request? a. None of the rows are locked. B.The retrieved rows are locked. C.The last row of the result set is locked. D.The rows not previously updated by another application are locked.

Wipro,

3 9153

If we have 100 records in the PF, we deleted all the records then what is the Size of the PF?

2 6207

how to fetch multiple records without using cursor

HCL,

14 38992

what is datacom db?

CSC,

2 8125

db2 query I have one table with the following details. SNO SNAME DOJ ------ -------------------- ---------- 10 KRISH 2007-03-19 20 REDDY 2007-05-19 30 RRRRR 2007-05-19 40 BBBBB 2008-05-19 50 CCCCC 2009-05-19 60 JJJJJ 2009-05-19 70 JJJJJ 2004-05-19 i want the output in the following format:( no of students joined in each year(no nedd to consider about month and date) year count --------- ---------- 2004 1 2007 3 2008 1 2009 2

TCS,

9 13841

what will be the output of the below given query, if no matching records are found : (a.) 0 (b.) null (c.) error select Avg(salary) from TableA where Deptno = 'insurance'

Amdocs,

10 16034

Can we use select * statement in cobol program without giving field names ???

Zensar,

3 11578

why we create view.

5 9910

quary for 1> fetch last record 2> fetch in reverse order 3> fetch last 5 row 4> fetch second last record (their is no primary key) i think concept of count can be use for this in 4th

5 10317

I have a table which has thousand of records i want to fetch only record num 100 to record num 200. Write a query that satisfies this criteria.(Cant use any keys) Anyone please reply ASAP!

KNIT, Tech Mahindra,

17 26482

What are the functions in DB2?

Satyam,

3 9225

How to know the primary key of a table without defining the primary key in the table?

Satyam,

5 15136

can we drop column from a table

INDUS,

7 20777

How to get Top 10 Salaries from a Table

Accenture, HTC,

11 27628

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Un-Answered Questions { DB2 }

What is query_cache_limit?

930

How can you classify the locks in db2?

1035

What does reorg do in db2?

985

Can you tell me how can you find out the # of rows updated after an update statement?

1047

Comment whether dclgen is mandatorily used. If not, then what is the point of using it?

1007

What is explain in db2?

961

what is utility for parm lib

2311

What is blu acceleration in db2?

1016

How can you do the explain of a dynamic sql statement?

1017

What are the full forms of spufi and dclgen and why are they used?

1025

What is the difference between plan and package in db2?

1039

How to connect to db2 database from windows command line?

1003

What is a buffer in memory?

1008

Can we insert update delete in view?

912

What are sqlcodes –803,-805, -811, -818,-904,-911,-913,-101, +100?

1114

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